Step 1: Locate the resource pack .zip file in your downloads folder
Step 2: Double-click on the resource pack .zip file to open it.
Step 3: Launch Minecraft and click on the Options button.
Step 4: Next click on the Resource Packs button.
Step 5: Then click on the Open Pack Folder at the bottom of the screen or window.
Step 6: A new window should have opened up. This is the .minecraft resource packs folder.
Step 7: Next you want to return to where you opened the .zip file you downloaded earlier and select all the resource pack files.
Step 8: Click and drag all the selected resource packs into the .minecraft resource packs folder.
Step 9: Finally, return to Minecraft and ensure all the resource packs you moved into the .minecraft resource packs folder are selected, then click the Done button. Congrats, you should now have all the required packs to play on the server.